Institutionen för systemteknik Biasing for high linearity base-station pre-driver Department of Electrical Engineering
... Chapter 3- Background to The RF Power Amplifiers: an overview in RF power amplifier fundamentals is studied. Define the nonlinearity and metrics to measure the linearity of RF power amplifiers. Subsequently short summery of linearization techniques in RFPA is investigated. Some device technologies a ...
... Chapter 3- Background to The RF Power Amplifiers: an overview in RF power amplifier fundamentals is studied. Define the nonlinearity and metrics to measure the linearity of RF power amplifiers. Subsequently short summery of linearization techniques in RFPA is investigated. Some device technologies a ...
Cookbook for SAR ADC measurements
... acquisition time. This feature is particularly useful in case of higher input impedance used. NOTE It is important to mention the difference between PGA used in Freescale DSCs and Kinetis devices. If PGA is used it can have significant influence on external RC component selection. Some of DSCs use P ...
... acquisition time. This feature is particularly useful in case of higher input impedance used. NOTE It is important to mention the difference between PGA used in Freescale DSCs and Kinetis devices. If PGA is used it can have significant influence on external RC component selection. Some of DSCs use P ...
AP5724 Description Pin Assignments
... A 10μH to 22μH inductor is recommended for most AP5724 applications. For high efficiency the inductor should have low core losses at 1.2MHz and low DCR (copper wire resistance). The inductor saturation current rating should also exceed the peak input current, especially for high load current applica ...
... A 10μH to 22μH inductor is recommended for most AP5724 applications. For high efficiency the inductor should have low core losses at 1.2MHz and low DCR (copper wire resistance). The inductor saturation current rating should also exceed the peak input current, especially for high load current applica ...
Distribution Systems
... The distribution system can be overhead or underground. Overhead lines are generally mounted on wooden, concrete or steel poles which are arranged to carry distribution transformers in addition to the conductors. The underground system uses conduits, cables and manholes under the surface of streets ...
... The distribution system can be overhead or underground. Overhead lines are generally mounted on wooden, concrete or steel poles which are arranged to carry distribution transformers in addition to the conductors. The underground system uses conduits, cables and manholes under the surface of streets ...
MAX11208 20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface General Description
... The MAX11208 is an ultra-low-power (< 240FA active), high-resolution, low-speed, serial-output ADC. This device provides the highest resolution per unit power in the industry and is optimized for applications that require very high dynamic range with low power, such as sensors on a 4mA to 20mA indus ...
... The MAX11208 is an ultra-low-power (< 240FA active), high-resolution, low-speed, serial-output ADC. This device provides the highest resolution per unit power in the industry and is optimized for applications that require very high dynamic range with low power, such as sensors on a 4mA to 20mA indus ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... UNDERGROUND cables have been widely implemented due to reliability and environmental concerns. To improve the reliability of a distribution system, accurate identification of a faulted segment is required in order to reduce the interruption time during fault, i.e., to restore services by determining ...
... UNDERGROUND cables have been widely implemented due to reliability and environmental concerns. To improve the reliability of a distribution system, accurate identification of a faulted segment is required in order to reduce the interruption time during fault, i.e., to restore services by determining ...
Thesis
... turn-off process.By the nature of resonant tank and ZCS, the peak switch current is much higher than that in a square wave. In addition, a high voltage becomes established across the switch in the off- state after the resonant oscillation. When switch on the capacitor will be discharged ...
... turn-off process.By the nature of resonant tank and ZCS, the peak switch current is much higher than that in a square wave. In addition, a high voltage becomes established across the switch in the off- state after the resonant oscillation. When switch on the capacitor will be discharged ...
TL087, TL088, TL287, TL288 JFET-INPUT OPERATIONAL AMPLIFIERS D
... temperature is PD = (TJ(max) – TA)/qJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensur ...
... temperature is PD = (TJ(max) – TA)/qJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensur ...
ECEN 3711 -- BJTs, the Curve Tracer, and a DTL Circuit -
... versus the same input voltages. [3 pts] As always, nice tables and plots are expected for this lab. [2 pts] *Notes: Add a 0.1μF capacitor between the 3.5 and 0 V lines near their source, but on your SK board. This is called a decoupling capacitor and will minimize transient signals in the power-supp ...
... versus the same input voltages. [3 pts] As always, nice tables and plots are expected for this lab. [2 pts] *Notes: Add a 0.1μF capacitor between the 3.5 and 0 V lines near their source, but on your SK board. This is called a decoupling capacitor and will minimize transient signals in the power-supp ...
Hand-Drawn Circuit Diagrams for all circuits that are to
... magnitude of these resistors, we do not change the fact that the circuit multiplies by a negative constant; we only change the magnitude of the multiplier. The load resistor Rload is not part of the amplifier. It represents the resistance of the load on the amplifier. Powering the op-amp: The two DC ...
... magnitude of these resistors, we do not change the fact that the circuit multiplies by a negative constant; we only change the magnitude of the multiplier. The load resistor Rload is not part of the amplifier. It represents the resistance of the load on the amplifier. Powering the op-amp: The two DC ...
Feasibility study
... differentiation of the signal almost breaking dc-path and essentially suppressing the slow residuals. Moreover it helps to keep the discriminator threshold level independent from dc-offsets and temperature drifts occurring in input part of the electronics. By the principle of operation the base line ...
... differentiation of the signal almost breaking dc-path and essentially suppressing the slow residuals. Moreover it helps to keep the discriminator threshold level independent from dc-offsets and temperature drifts occurring in input part of the electronics. By the principle of operation the base line ...
why three-phase? - Fronius International
... higher than that of a three-phase network (to compensate for this voltage rise extra cabling is required, which means extra expense). The penetration capacity of PV in a three-phase network can be greater than that of a single-phase network, which is a significant advantage considering increasing e ...
... higher than that of a three-phase network (to compensate for this voltage rise extra cabling is required, which means extra expense). The penetration capacity of PV in a three-phase network can be greater than that of a single-phase network, which is a significant advantage considering increasing e ...
Evaluation Board User Guide UG-230
... the VIN pad on the evaluation board. Connect the positive terminal (+) of the ammeter to one of the GND pads of the evaluation board. Connect the negative terminal (−) of the ammeter to the negative (−) terminal of the voltage source. Connect a load between the VOUT pad of the evaluation board and t ...
... the VIN pad on the evaluation board. Connect the positive terminal (+) of the ammeter to one of the GND pads of the evaluation board. Connect the negative terminal (−) of the ammeter to the negative (−) terminal of the voltage source. Connect a load between the VOUT pad of the evaluation board and t ...
NDM2Z-12V
... output will begin to ramp towards ground according to the pre-configured soft-stop ramp time that has been set. It is recommended to set the soft-start ramp down to a value greater than 500 μs in order to prevent voltage spikes in the module input supply rail due the energy stored in the output capa ...
... output will begin to ramp towards ground according to the pre-configured soft-stop ramp time that has been set. It is recommended to set the soft-start ramp down to a value greater than 500 μs in order to prevent voltage spikes in the module input supply rail due the energy stored in the output capa ...
F 3349: 8-channel output module
... If the line is longer than 10 m or if a power supply unit not manufactured by HIMA is used, for a faultless operation with 48 V the supply voltage must be filtered with an additional module Z 6019. Lines for outputs not used may not be extended to the plant without any terminal loads. In one I/O sub ...
... If the line is longer than 10 m or if a power supply unit not manufactured by HIMA is used, for a faultless operation with 48 V the supply voltage must be filtered with an additional module Z 6019. Lines for outputs not used may not be extended to the plant without any terminal loads. In one I/O sub ...
SN74LV8153 数据资料 dataSheet 下载
... The SN74LV8153 is a serial-to-parallel data converter. It accepts serial input data and outputs 8-bit parallel data. The automatic data-rate detection feature of the SN74LV8153 eliminates the need for an external oscillator and helps with cost and board real-estate savings. The OUTSEL pin is used to ...
... The SN74LV8153 is a serial-to-parallel data converter. It accepts serial input data and outputs 8-bit parallel data. The automatic data-rate detection feature of the SN74LV8153 eliminates the need for an external oscillator and helps with cost and board real-estate savings. The OUTSEL pin is used to ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.